Perhaps you should try some spelling variations:
"coder coding decoding semantic structures" » "coder coding decoding semantic structure" (Expand search), "coder coding decoding elastic structures" (Expand search), "coder coding decoding pneumatic structures" (Expand search), "coder coding detecting semantic structures" (Expand search), "coder coding designing semantic structures" (Expand search), "coder coding during semantic structures" (Expand search), "coder encoding decoding semantic structures" (Expand search), "coder reading decoding semantic structures" (Expand search), "coder joint decoding semantic structures" (Expand search), "modern coding decoding semantic structures" (Expand search), "color coding decoding semantic structures" (Expand search), "odor coding decoding semantic structures" (Expand search)
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coding decoding semantic structures") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding decoding semantic structures\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding decoding semantic structures ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding decoding semantic structures") OR ("on python python python programming"))*.